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Publication
Rotation capacity of corroded RC beams with special ductility tempcore rebars
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Advisor(s)
Abstract(s)
The corrosion of reinforced concrete structures influences not only their structural strength but also their
ductility. In this scenario, the use of Special Ductility Tempcore rebars, which belong to the highest ductility
class, can reduce the risk of having a brittle failure when corrosion occurs.
Therefore, this paper presents experimental and numerical studies to evaluate the rotation capacity of
corroded RC beams with this type of steel. The experimental part consists of testing five beams to rupture and the
numerical part uses the non-linear finite element method to correctly model the beam’s behaviour.
The results indicate that for 20% damage, the rotation capacity reduced about 50%; however, these values are
still higher than the Eurocode 2 normalized curve. In this scenario, the ultimate load only reduces 12%.
Nevertheless, corrosion affects the ultimate deflection of isostatic beams much more than hyperstatic beams.
Description
Keywords
Corrosion Damage Eurocode 2 Experimental campaign Numerical modelling Reinforced concrete Ultimate deflection Ultimate load . Faculdade de Ciências Exatas e da Engenharia
Pedagogical Context
Citation
Santos, J., & Henriques, A. A. (2021). Rotation capacity of corroded RC beams with special ductility tempcore rebars. Engineering Structures, 236, 112138. https://doi.org/10.1016/j.engstruct.2021.112138
Publisher
Elsevier